# Autumn weather patterns in Croatia and Slovenia

> Live situation record from CLSTR: https://clstr.news/situations/autumn-weather-patterns-in-croatia-and-slovenia
> Updated: 2026-10-27T00:00:00.000Z. Sources: 8. Developments: 3.

In late September and early October, Croatia and Slovenia experienced stable, sunny autumn weather driven by high-pressure systems. In Zadar, temperatures initially reached up to 27 °C with dry conditions, though forecasts predicted a shift toward increased cloud cover and heavy rainfall later in the week. Specifically, the Croatian Meteorological and Hydrological Service (DHMZ) noted that while the beginning of October remained stable, a significant shift was expected by the following Thursday, with heavy rainfall predicted to reach up to 27 mm on Friday.

By mid-October, the region remained characterized by calm, dry weather. In Slovenia, daytime temperatures were expected to range between 14 and 21 °C, with foggy mornings in low-lying areas. While the stable period was expected to persist through the end of the week, a cooler air mass from the east was forecasted to bring a slight increase in precipitation and a drop in temperatures following the weekend.

By late October, an area of high pressure over Central and Western Europe continued to bring dry and sunny conditions to Slovenia. Daytime temperatures were forecasted to range between 11 and 15 °C, though the Primorska region remained warmer with highs up to 20 °C. While morning temperatures in valleys dropped as low as -2 to 4 °C, coastal areas stayed warmer, occasionally experiencing a weak bora wind in the evenings. This sunny trend was expected to continue through early November, despite a gradual decrease in temperatures starting the final Sunday of October.

## Timeline

### 2026-10-27: Slovenia weather forecast: Sunny autumn days with morning fog

Slovenia will see sunny autumn weather with morning fog in lowlands. Temperatures will reach up to 20°C on the coast before cooling down after Sunday.

2 sources. https://clstr.news/cluster/slovenia-weather-forecast-sunny-autumn-days-with-morning-fog

### 2026-10-11: Autumn weather forecast for Slovenia and Croatia

Stable autumn weather with sunny skies and high pressure is expected across Slovenia, with temperatures reaching up to 21°C in coastal areas before a potential cooling trend later in the week.

4 sources. https://clstr.news/cluster/autumn-weather-forecast-for-slovenia-and-croatia

### 2026-09-30: Zadar expects sunny weather up to 27 °C before autumn shift

Zadar expects sunny weather and temperatures up to 27 °C through the weekend, followed by a significant shift toward rainy and unstable autumn weather starting next Thursday.

2 sources. https://clstr.news/cluster/zadar-expects-sunny-weather-up-to-27-c-before-autumn-shift

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Cite as: Autumn weather patterns in Croatia and Slovenia. CLSTR, https://clstr.news/situations/autumn-weather-patterns-in-croatia-and-slovenia